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Implement "takePicture"

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With this CL the camera emulator is capable of taking pictures

Change-Id: I29feea0c75a78c619aaf854a5665a24afb507ba4
This commit is contained in:
Vladimir Chtchetkine
2011-09-15 18:24:32 -07:00
parent 49842cee05
commit 2a532ee388
13 changed files with 690 additions and 84 deletions
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16
tools/emulator/system/camera/EmulatedCameraDevice.cpp
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@@ -117,6 +117,12 @@ status_t EmulatedCameraDevice::getCurrentPreviewFrame(void* buffer)
case V4L2_PIX_FMT_YVU420:
YV12ToRGB32(mCurrentFrame, buffer, mFrameWidth, mFrameHeight);
return NO_ERROR;
case V4L2_PIX_FMT_NV21:
NV21ToRGB32(mCurrentFrame, buffer, mFrameWidth, mFrameHeight);
return NO_ERROR;
case V4L2_PIX_FMT_NV12:
NV12ToRGB32(mCurrentFrame, buffer, mFrameWidth, mFrameHeight);
return NO_ERROR;
default:
LOGE("%s: Unknown pixel format %.4s",
@@ -136,6 +142,8 @@ status_t EmulatedCameraDevice::commonStartDevice(int width,
/* Validate pixel format, and calculate framebuffer size at the same time. */
switch (pix_fmt) {
case V4L2_PIX_FMT_YVU420:
case V4L2_PIX_FMT_NV21:
case V4L2_PIX_FMT_NV12:
mFrameBufferSize = (width * height * 12) / 8;
break;
@@ -157,10 +165,9 @@ status_t EmulatedCameraDevice::commonStartDevice(int width,
LOGE("%s: Unable to allocate framebuffer", __FUNCTION__);
return ENOMEM;
}
/* Calculate U/V panes inside the framebuffer. */
mFrameU = mCurrentFrame + mTotalPixels;
mFrameV = mFrameU + mTotalPixels / 4;
LOGV("%s: Allocated %p %d bytes for %d pixels in %.4s[%dx%d] frame",
__FUNCTION__, mCurrentFrame, mFrameBufferSize, mTotalPixels,
reinterpret_cast<const char*>(&mPixelFormat), mFrameWidth, mFrameHeight);
return NO_ERROR;
}
@@ -173,7 +180,6 @@ void EmulatedCameraDevice::commonStopDevice()
delete[] mCurrentFrame;
mCurrentFrame = NULL;
}
mFrameU = mFrameV = NULL;
}
/****************************************************************************